Definition of nucleus

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Nucleus (n.) A kernel; hence, a central mass or point about which matter is gathered, or to which accretion is made; the central or material portion; -- used both literally and figuratively..

Lern More About Nucleus

Nucleolated :: Nucleolated (a.) Having a nucleole, or second inner nucleus..
Indogenide :: Indogenide (n.) Any one of the derivatives of indogen, which contain that group as a nucleus..
Chalaza :: Chalaza (n.) The place on an ovule, or seed, where its outer coats cohere with each other and the nucleus..
Nucleoidioplasma :: Nucleoidioplasma (n.) Hyaline plasma contained in the nucleus of vegetable cells.
Monera :: Monera (n. pl.) The lowest division of rhizopods, including those which resemble the amoebas, but are destitute of a nucleus..
Mesoblast :: Mesoblast (n.) The cell nucleus; mesoplast.
Plastin :: Plastin (n.) A substance associated with nuclein in cell nuclei, and by some considered as the fundamental substance of the nucleus..
Blastide :: Blastide (n.) A small, clear space in the segments of the ovum, the precursor of the nucleus..
Nucleus :: Nucleus (n.) The central part around which additional growths are added, as of an operculum..
Perinuclear :: Perinuclear (a.) Of or pertaining to a nucleus; situated around a nucleus; as, the perinuclear protoplasm..
Uninucleated :: Uninucleated (a.) Possessed of but a single nucleus; as, a uninucleated cell..
Nucleolus :: Nucleolus (n.) A small rounded body contained in the nucleus of a cell or a protozoan.
Paranucleus :: Paranucleus (n.) Some as Nucleolus.
Pyridine :: Pyridine (n.) A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colorless liquid with a peculiar pungent odor. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may be mentioned. See Lutidine..
Thionaphthene :: Thionaphthene (n.) A double benzene and thiophene nucleus, C8H6S, analogous to naphthalene, and like it the base of a large series of derivatives..
Pyrrol :: Pyrrol (n.) A nitrogenous base found in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C4H5N, having on odor like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it colors a splinter of wood moistened with hydrochloric acid a deep red..
Nuclear :: Nuclear (a.) Of or pertaining to a nucleus; as, the nuclear spindle (see Illust. of Karyokinesis) or the nuclear fibrils of a cell; the nuclear part of a comet, etc..
Nucleoplasm :: Nucleoplasm (n.) The matter composing the nucleus of a cell; the protoplasm of the nucleus; karyoplasma.
Spermococcus :: Spermococcus (n.) The nucleus of the sperm cell.
Janizary :: "Janizary (n.) A soldier of a privileged military class, which formed the nucleus of the Turkish infantry, but was suppressed in 1826..
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